He was born in Ohio in 1860 and died due to a car accident in Connecticut in 1913.
Millar started painting as a very young child. By the age of 9, he had already won several art competitions. His success encouraged his parents, and he began taking formal art lessons.
In 1894 Addison Millar traveled to Paris. He studied at the Academie Julian along with the Italian genre portrait artist Giovanni Boldini.
In 1985 he visited Spain. It was from here that he made his first visit to Algiers.
Algiers provided Millar with a constant source of inspiration. Many of his Orientalism oil paintings feature traders selling their wares in the markets and souks.
The Waterfall is an oil on canvas painting that Millar completed in 1910. The original is held at the Smithsonian America Art Museum. Vice-President Pence and his wife received this painting on loan from the Smithsonian for display in their official residence.